Home / 189,674.75-261,750.96-109,100.20

Finding the Fourth Proportional to 189,674.75, 261,750.96 and 109,100.20

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Solution

The fourth proportional to 189,674.75, 261,750.96 and 109,100.20 is: 150,558.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,674.75 : 261,750.96 = 109,100.20 : x
  2. Step 2: Convert to fraction form
    189,674.75/261,750.96 = 109,100.20/x
  3. Step 3: Cross multiply
    189,674.75x = 261,750.96 × 109,100.20
  4. Step 4: Simplify right side
    189,674.75x = 28,557,082,086.19
  5. Step 5: Solve for x
    x = 28,557,082,086.19/189,674.75
  6. Step 6: Final answer
    x = 150,558.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.